The variant featuring Wonder Woman crushing Harley Quinn, who happens to have a grenade in her mouth, was done by artist Lee Bermejo for an exclusive Forbidden Planet release.

"[Forbidden Planet] suggested the grenade pin in Harley's mouth for continuity with some of their other covers. Nice touch I must say," Lee Bermejo posted on Instagram.

The Justice League vs. Suicide Squad event kicks off in December with a special prelude found in the pages of Suicide Squad #8 and continues into issues of Suicide Squad (#9 and #10) and Justice League (#12 and #13) serving as tie-ins during January.

Justice League vs. Suicide Squad pits DC’s two greatest super-teams against each other in a six-issue weekly miniseries and is described as:

The day that Amanda Waller has long dreaded has finally come to pass: the Justice League has discovered the existence of Task Force X! America’s paragons of truth and justice won’t take well to a government-sponsored team of black ops super-villains (with bombs implanted in their heads), but before the Justice League can shut down the Suicide Squad, a bigger problem looms: another deadly strike team is lurking in the shadows, one that could expose dark secrets throughout the DC Universe, with ties to the hidden truths of REBIRTH. Longtime enemies such as Batman and Deadshot, the Flash and Boomerang, and Wonder Woman and Harley Quinn will have to put aside their differences when an evil threat once thought lost to the DC Universe makes their return.